@misc{indiciae91e2440a2a53,
  title = {Optical Navigation for the Orion Vehicle},
  author = {Crain, Timothy and Getchius, Joel and D'Souza, Christopher},
  year = {2008},
  url = {https://ntrs.nasa.gov/citations/20080009587},
  note = {Source identifier: 20080009587}
}